Attached file is my final preamp for subwoofer. Source is DVD Player.
1) I could not understand why there is needed 220pf bcoz I did not find any differences with it or without it.
2) Low noise appears but if I add 0.1 uf ceramic capacitor pin 1-2 noise disappears but sound quality disturb.
3) Please help me for CLEAN BASS. Pl do any required correction to my circuit.
Thanks & Reards
1) I could not understand why there is needed 220pf bcoz I did not find any differences with it or without it.
2) Low noise appears but if I add 0.1 uf ceramic capacitor pin 1-2 noise disappears but sound quality disturb.
3) Please help me for CLEAN BASS. Pl do any required correction to my circuit.
Thanks & Reards
